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7 November, 11:08

Factor each expression.

Problem: r^2 + 12r + 27

Answer: (r + 3) (r + 9)

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Answers (1)
  1. 7 November, 11:32
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    Think of it like this, what two numbers when multiplied together, you get 27, and when they add together, you get 12? The answer is 9 and 3,

    Your answer here would be (r+9) (r+3) when factored.
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